Fe (mg/l)

2.328 ± 0.937

(0.25 - 6.42)

2.255 ± 0.744

(0.49 - 5.28)

0.6083 ± 0.116

(0.19 - 0.92)

0.3

0.175

P > 0.05

Mn (mg/l)

0.150 ± 0.033a

(0.064 - 0.296)

0.210 ± 0.029a

(0.125 - 0.310)

0.053 ± 0.008b

(0.024 - 0.075)

0.40

0.002

P < 0.01

Zn (mg/l)

0.712 ± 0.304

(0.191 - 2.040)

0.689 ± 0.236

(0.280 - 1.583)

0.138 ± 0.016

(0.098 - 0.190)

5

0.153

P > 0.05

Cu (mg/l)

0.057 ± 0.022

(0.007 - 0.148)

0.066 ± 0.014

(0.023 - 0.121)

0.020 ± 0.004

(0.009 - 0.037)

0.5 - 1.5

0.112

P > 0.05

Cr (mg/l)

0.063 ± 0.010b

(0.029 - 0.099)

0.107 ± 0.020a

(0.051 - 0.179)

0.035 ± 0.010b

(0.010 - 0.065)

0.05

0.009

P < 0.01

Cd (mg/l)

0.046 ± 0.009b

(0.024 - 0.084)

0.085 ± 0.011a

(0.043 - 0.121)

0.022 ± 0.004b

(0.007 - 0.037)

0.005

0.000

P < 0.001

Ni (mg/l)

0.010 ± 0.004

(0.000 - 0.000)

0.030 ± 0.008

(0.000 - 0.000)

0.020 ± 0.005

(0.000 - 0.000)

NG

0.067

P > 0.05

Pb (mg/l)

0.029 ± 0.006b

(0.010 - 0.045)

0.058 ± 0.011a

(0.023 - 0.092)

0.020 ± 0.007b

(0.005 - 0.049)

0.01

0.015

P < 0.05

V (mg/l)

0.01 ± 0.003

(0.000 - 0.000)

0.03 ± 0.007

(0.000 - 0.000)

0.01 ± 0.004

(0.000 - 0.000)

NG

0.061

P > 0.05